Unverified50% confidenceTradeoffExact time
Gmail's many-to-one address normalization mapping is mathematically called a surjection, which fundamentally eliminates the possibility of distinguishing different users through address variants.
1
Sources
50%
Confidence
Long-term
Relevance
8/19/2026
First Seen
Sources
Gmail点号忽略机制为何导致邮件误送给同名用户
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